# File lib/pundit/policy_finder.rb, line 57
    def param_key
      model = object.is_a?(Array) ? object.last : object

      if model.respond_to?(:model_name)
        model.model_name.param_key.to_s
      elsif model.is_a?(Class)
        model.to_s.demodulize.underscore
      else
        model.class.to_s.demodulize.underscore
      end
    end